US5078413A - Steel laminate gasket with main and auxiliary sealing devices - Google Patents

Steel laminate gasket with main and auxiliary sealing devices Download PDF

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Publication number
US5078413A
US5078413A US07/617,039 US61703990A US5078413A US 5078413 A US5078413 A US 5078413A US 61703990 A US61703990 A US 61703990A US 5078413 A US5078413 A US 5078413A
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US
United States
Prior art keywords
plate
bead
auxiliary
main
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/617,039
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English (en)
Inventor
Yoshio Miyaoh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ishikawa Gasket Co Ltd
Original Assignee
Ishikawa Gasket Co Ltd
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Filing date
Publication date
Application filed by Ishikawa Gasket Co Ltd filed Critical Ishikawa Gasket Co Ltd
Assigned to ISHIKAWA GASKET CO., LTD., A CORP. OF JAPAN reassignment ISHIKAWA GASKET CO., LTD., A CORP. OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MIYAOH, YOSHIO
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Publication of US5078413A publication Critical patent/US5078413A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J15/0825—Flat gaskets laminated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0837—Flat gaskets with an edge portion folded over a second plate or shim
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0862—Flat gaskets with a bore ring

Definitions

  • the present invention relates to a steel laminate gasket for an internal combustion engine with auxiliary combustion chambers as well as cylinder bores to prevent leakage of gas from the cylinder bores and the auxiliary combustion chambers.
  • FIGS. 1 and 2 One example (prior art) of an engine with an auxiliary combustion chamber and a steel laminate gasket therefor is shown in FIGS. 1 and 2.
  • a cylinder head H is provided with an auxiliary combustion chamber M, to which a mouth plate L is attached to define the auxiliary combustion chamber M.
  • a gasket 10 is installed between a cylinder block J and the cylinder head H with a part of the mouth plate L.
  • the gasket 10 includes cylinder bores Hc, water holes Hw, oil holes Ho, push rod holes Hp and bolt holes Hb.
  • the gasket 10 is formed of plates 11, 12, 13, 14, 15, and a wire ring 16.
  • the plate 11 has a curved portion 11a around the cylinder bore Hc, and a flange 11b situated outside the plate 15.
  • the plate 12 includes a bead 12a around the cylinder bore Hc, and a bead 12b outside a counter portion P corresponding to the mouth plate L.
  • the wire ring 16 is situated adjacent to the curved portion 11a to surround the cylinder bore Hc.
  • the beads 12a, 12b are formed outside the cylinder bore Hc and the counter portion P. However, when the mouth plate L is slightly moved, combustion gas may leak through the beads 12a, 12b.
  • additional beads are further provided, such as beads outside connecting or intersecting points of the beads 12a, 12b, with one or more bead located inside the counter portion P. Height and orientation of the beads may also be changed.
  • the gaskets as proposed in these patents substantially prevent leakage of combustion gas from the cylinder bores.
  • the gaskets as proposed in the patents do not operate as intended.
  • Japanese Patent Publication (KOKAI) No. 61-255254 proposed a gasket having an outer bead in the form of a step to provide tightening pressure equally on all beads and to improve sealing ability. Since the outer bead or step is formed along an outer edge of a gasket, if leakage happens at a high pressure portion, the outer bead can not stop leakage.
  • the present invention has been made in view of the above prior art.
  • One object of the present invention is to provide a steel laminate gasket, which can tightly seal around a cylinder bore with an auxiliary combustion chamber.
  • Another object of the invention is to provide a steel laminate gasket as stated above, wherein even if leakage occurs at main sealing means, the leakage is sufficiently prevented.
  • a further object of the invention is to provide a steel laminate gasket as stated above, wherein the gasket can be easily and economically manufactured.
  • a steel laminate gasket is installed in an internal combustion engine with at least one auxiliary combustion chamber.
  • the engine includes a cylinder head with the auxiliary combustion chamber therein, a cylinder block with at least one cylinder bore, and at least one mouth plate attached to the cylinder head to define the auxiliary combustion chamber.
  • the gasket comprises first, second and third plates.
  • the first plate includes a base portion, a curved portion extending from the base portion to define a hole corresponding to the cylinder bore, and a flange extending from the curved portion in the direction away from the cylinder bore.
  • the second plate is located under the base portion of the first plate, and the third plate is located under the second plate.
  • the third plate includes an end portion, which is situated between the base portion and the flange.
  • the gasket further includes at least one main sealing means situated between the base portion and the flange to securely seal around the cylinder bore, and an auxiliary bead formed on one of the first, second and third plates.
  • the auxiliary bead is located outside the main sealing means and a part of a counter portion corresponding to the mouth plate. Namely, the auxiliary bead is arranged to completely surround the cylinder bore and the counter portion beneath the mouth plate without having any other holes inside the auxiliary bead.
  • the main sealing means may be a main bead formed on one of the first, second and third plates.
  • the auxiliary bead is formed on the same plate as the main bead.
  • the main bead and auxiliary bead extend in the opposite directions, respectively.
  • each auxiliary bead which surrounds the cylinder bore and the counter portion is joined at the narrow portion to form a common portion.
  • the auxiliary beads can sufficiently seal around the cylinder bores.
  • FIG. 1 is a plan view of a part of a conventional gasket
  • FIG. 2 is an explanatory section view for showing a condition that the gasket as shown in FIG. 1 is: installed in an engine with an auxiliary combustion chamber;
  • FIG. 3 is an explanatory plan view of a part of a middle plate of a gasket of the present invention.
  • FIG. 4 is an enlarged section view of a gasket of the invention taken along line 4--4 in FIG. 3;
  • FIG. 5 is an enlarged section view of a gasket of the invention taken along line 5--5 in FIG. 3.
  • the gasket 20 is designed to be installed in an engine having a cylinder head H with an auxiliary combustion chamber M, a cylinder block J, and a mouth plate L attached to the cylinder head H, as in the engine shown in FIG. 2.
  • the gasket 20 includes a plurality of cylinder bores Hc, water holes Hw, oil holes Ho, bolt holes Hb and push rod holes Hp, as in the conventional gasket. Since the present invention is directed to a sealing mechanism around the cylinder bores Hc with auxiliary combustion chambers M, other sealing mechanisms around the water hole Hw, oil hole Ho and so on are omitted in FIG. 3. Any sealing mechanisms may be used for sealing around the water holes Hw, oil holes Ho and so on.
  • the gasket 20 comprises an upper plate 21, middle plates 22, 23, and a lower plate 24.
  • the upper plate 21 extends substantially the entire area of the gasket 20.
  • the upper plate 21 includes a base portion 21a, a curved portion 21b extending downwardly from the base portion 21a to surround the cylinder bore Hc and a flange 21c extending from the curved portion 21b in the direction away from the cylinder bore Hc.
  • the middle plate 22 is situated under the base portion 21a and extends substantially the entire area of the gasket 20.
  • the middle plate 22 is provided with main beads 22a extending toward the lower plate 24, and auxiliary beads 22b extending toward the upper plate 21.
  • the main beads 22a surround the respective cylinder bores Hc, while the auxiliary beads 22b are situated outside the main beads 22a to surround the same widely.
  • the gasket 20 supports the mouth plate L underside thereof.
  • the main bead 22a since the main bead 22a is situated adjacent to the cylinder bore Hc, the main bead 22a crosses underside the mouth plate L to support the same.
  • the auxiliary bead 22b located outside the main bead 22a surrounds a portion L' corresponding to the mouth plate L. Namely, the auxiliary bead 22b is not situated under the mouth plate L.
  • the auxiliary bead 22b completely surrounds the main bead 22a and the portion L, especially the points N, N' as shown in FIG. 1 from which combustion gas is liable to leak. Therefore, even if the mouth plate L slightly moves in operation and gas leaks from the points N, N', the auxiliary bead 22b can properly seal to prevent leakage outwardly.
  • the engine on which the gasket 20 is installed has cylinder bores Hc closely arranged to each other. Therefore, there is no sufficient space to independently form two auxiliary beads 22b between the cylinder bores Hc. Therefore, as shown in FIG. 3, the adjacent auxiliary beads 22b are combined together to form a common portion 22c between the cylinder bores Hc.
  • the respective auxiliary beads 22b with the common portion 22c can securely seal around the main bead 22a. In case there is enough space to form the auxiliary beads 22b independently, it is unnecessary to form the common portion 22c.
  • the main bead 22a and the auxiliary bead 22b extend in the opposite directions. Acute or high surface pressure is generally formed at a side that a bead projects In the present invention, since the main bead 22a and the auxiliary bead 22b extend in different directions, acute or high surface pressure of the two beads 22a, 22b orients in the different directions. Therefore, high surface pressure for sealing between the cylinder head and cylinder block is oriented in different directions to properly seal therebetween.
  • the middle plate 23 is located under the middle plate 22, and does not overlap the flange 21c.
  • the lower plate 24 is situated under the middle plate 23 and has an edge portion 24a situated above the flange 21c. Since the middle plate 23 does not overlap the flange 21c, the middle plate 23 operates as a surface pressure regulation plate.
  • the flange 21c and the edge portion 24a overlap with each other, and the main bead 22a is situated above the flange 21c and the edge portion 24a. Therefore, an area around the cylinder bore Hc is sufficiently sealed. Even if combustion gas is leaked, the gas does not enter between the upper and lower plates 21, 24.
  • a wire ring 16 may be incorporated into the gasket 20 to seal around the cylinder bore Hc. In this case, the wire ring is located inside the main bead 22a.
  • an auxiliary bead is situated to surround a main sealing bead of the cylinder bore and a portion corresponding to the mouth plate. There is no hole except the cylinder bore inside the auxiliary bead. Therefore, even if the mouth plate is slightly moved to cause leakage around the mouth plate, leaked gas is sufficiently prevented to spread outwardly by the auxiliary bead. As a result, leakage is effectively blocked.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)
US07/617,039 1989-11-29 1990-11-23 Steel laminate gasket with main and auxiliary sealing devices Expired - Lifetime US5078413A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-137302[U] 1989-11-29
JP1989137302U JP2518002Y2 (ja) 1989-11-29 1989-11-29 予備燃焼室付きシリンダヘッド用ガスケット

Publications (1)

Publication Number Publication Date
US5078413A true US5078413A (en) 1992-01-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US07/617,039 Expired - Lifetime US5078413A (en) 1989-11-29 1990-11-23 Steel laminate gasket with main and auxiliary sealing devices

Country Status (5)

Country Link
US (1) US5078413A (de)
EP (1) EP0430163B1 (de)
JP (1) JP2518002Y2 (de)
DE (1) DE69008821T2 (de)
ES (1) ES2052139T3 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165372A (en) * 1990-04-18 1992-11-24 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US5255927A (en) * 1991-05-30 1993-10-26 Ishikawa Gasket Co., Ltd. Metal laminate type cylinder head gasket
US5272808A (en) * 1991-10-07 1993-12-28 Ishikawa Gasket Co., Ltd. Method of manufacturing a cylinder head gasket
US5410997A (en) * 1993-02-09 1995-05-02 Fel-Pro Incorporated High performance automotive engine gasket and method of sealing a high performance engine
EP0780604A1 (de) 1995-12-21 1997-06-25 Ishikawa Gasket Co. Ltd. Metalldichtung mit einem Stützwulst
US5876038A (en) * 1995-04-26 1999-03-02 Elring Klinger Gmbh Metallic cylinder head gasket
US6168166B1 (en) * 1998-05-29 2001-01-02 Ishikawa Gasket Co., Ltd. Metal gasket with two half beads
US20050225036A1 (en) * 2002-02-15 2005-10-13 Inciong Josefino T Mls gasket with bore edge stopper bead
US6957814B2 (en) * 2001-06-19 2005-10-25 Honda Giken Kogyo Kabushiki Kaisha Metal gasket
US20060017232A1 (en) * 2004-07-23 2006-01-26 Ishikawa Gasket Co., Ltd Metal gasket
US20060091615A1 (en) * 2004-11-04 2006-05-04 Ishikawa Gasket Co., Ltd Metal gasket
US20090273143A1 (en) * 2006-09-27 2009-11-05 Masato Nagawa Gasket

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308726A1 (de) * 1993-03-19 1993-12-02 Lechler Elring Dichtungswerke Flachdichtung für Verbrennungskraftmaschinen
JPH1019129A (ja) * 1996-07-02 1998-01-23 Ishikawa Gasket Kk シリンダヘッドガスケット
JP3628960B2 (ja) * 2000-12-20 2005-03-16 石川ガスケット株式会社 メタルガスケット
US6913267B2 (en) * 2003-10-02 2005-07-05 International Engine Intellectual Property Company, Llc Apparatus for aligning push rods

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711334A (en) * 1951-07-05 1955-06-21 Detroit Gasket & Mfg Company Laminated gasket
GB1114200A (en) * 1965-11-25 1968-05-15 Daimler Benz Ag Improvements relating to flat metal seals
US4203608A (en) * 1978-02-02 1980-05-20 Nicholson Terence P Corrugated gaskets
US4254963A (en) * 1979-12-04 1981-03-10 Ex-Cell-O Corporation Gasket assembly
GB2073335A (en) * 1981-02-17 1981-10-14 Lechler Elring Dichtungswerke Internal combustion engine gasket
US4311318A (en) * 1980-12-01 1982-01-19 Felt Products Mfg. Co. Head gasket assembly and method of making same
US4400000A (en) * 1982-04-15 1983-08-23 Felt Products Mfg. Co. Head gasket assembly for diesel engines
JPS5990745A (ja) * 1982-11-16 1984-05-25 Ishikawa Gasket Kk 金属積層形ヘツドガスケツト
JPS60162037A (ja) * 1984-02-02 1985-08-23 Yuusan Gasket Kk シリンダ・ヘツド・ガスケツト
JPS61255254A (ja) * 1985-05-09 1986-11-12 Nippon Metal Gasket Kk 金属ガスケツト
US4739999A (en) * 1987-04-20 1988-04-26 Ishikawa Gasket Co., Ltd. Steel laminate gasket
JPS63143369A (ja) * 1986-12-06 1988-06-15 Kubota Ltd 副室式エンジンのヘツドガスケツト
US4759556A (en) * 1987-10-27 1988-07-26 Ishikawa Gasket Co., Ltd. Metal gasket with auxiliary bead
US4791897A (en) * 1987-04-21 1988-12-20 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US4803965A (en) * 1986-07-07 1989-02-14 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US4815750A (en) * 1988-06-08 1989-03-28 Nihon Metal Gasket Kabushiki Kaisha Metallic gasket with sealing beads
US4861046A (en) * 1988-05-16 1989-08-29 Ishikawa Gasket Co., Ltd. Steel laminate gasket with separate beads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511333Y2 (de) * 1986-10-06 1993-03-19

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711334A (en) * 1951-07-05 1955-06-21 Detroit Gasket & Mfg Company Laminated gasket
GB1114200A (en) * 1965-11-25 1968-05-15 Daimler Benz Ag Improvements relating to flat metal seals
US4203608A (en) * 1978-02-02 1980-05-20 Nicholson Terence P Corrugated gaskets
US4254963A (en) * 1979-12-04 1981-03-10 Ex-Cell-O Corporation Gasket assembly
US4311318A (en) * 1980-12-01 1982-01-19 Felt Products Mfg. Co. Head gasket assembly and method of making same
GB2073335A (en) * 1981-02-17 1981-10-14 Lechler Elring Dichtungswerke Internal combustion engine gasket
US4400000A (en) * 1982-04-15 1983-08-23 Felt Products Mfg. Co. Head gasket assembly for diesel engines
JPS5990745A (ja) * 1982-11-16 1984-05-25 Ishikawa Gasket Kk 金属積層形ヘツドガスケツト
JPS60162037A (ja) * 1984-02-02 1985-08-23 Yuusan Gasket Kk シリンダ・ヘツド・ガスケツト
JPS61255254A (ja) * 1985-05-09 1986-11-12 Nippon Metal Gasket Kk 金属ガスケツト
US4803965A (en) * 1986-07-07 1989-02-14 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
JPS63143369A (ja) * 1986-12-06 1988-06-15 Kubota Ltd 副室式エンジンのヘツドガスケツト
US4739999A (en) * 1987-04-20 1988-04-26 Ishikawa Gasket Co., Ltd. Steel laminate gasket
US4791897A (en) * 1987-04-21 1988-12-20 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US4809653A (en) * 1987-04-21 1989-03-07 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US4759556A (en) * 1987-10-27 1988-07-26 Ishikawa Gasket Co., Ltd. Metal gasket with auxiliary bead
US4861046A (en) * 1988-05-16 1989-08-29 Ishikawa Gasket Co., Ltd. Steel laminate gasket with separate beads
US4815750A (en) * 1988-06-08 1989-03-28 Nihon Metal Gasket Kabushiki Kaisha Metallic gasket with sealing beads

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Takahashi, Japanese Abstract 61 160549, 7/86. *
Takahashi, Japanese Abstract 61-160549, 7/86.

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5165372A (en) * 1990-04-18 1992-11-24 Ishikawa Gasket Co., Ltd. Steel laminate type cylinder head gasket
US5255927A (en) * 1991-05-30 1993-10-26 Ishikawa Gasket Co., Ltd. Metal laminate type cylinder head gasket
US5272808A (en) * 1991-10-07 1993-12-28 Ishikawa Gasket Co., Ltd. Method of manufacturing a cylinder head gasket
US5410997A (en) * 1993-02-09 1995-05-02 Fel-Pro Incorporated High performance automotive engine gasket and method of sealing a high performance engine
US5876038A (en) * 1995-04-26 1999-03-02 Elring Klinger Gmbh Metallic cylinder head gasket
US5653451A (en) * 1995-12-21 1997-08-05 Ishikawa Gasket Co., Ltd. Metal gasket with independent and eccentric support bead
EP0780604A1 (de) 1995-12-21 1997-06-25 Ishikawa Gasket Co. Ltd. Metalldichtung mit einem Stützwulst
US6168166B1 (en) * 1998-05-29 2001-01-02 Ishikawa Gasket Co., Ltd. Metal gasket with two half beads
US6957814B2 (en) * 2001-06-19 2005-10-25 Honda Giken Kogyo Kabushiki Kaisha Metal gasket
US20050225036A1 (en) * 2002-02-15 2005-10-13 Inciong Josefino T Mls gasket with bore edge stopper bead
US7293779B2 (en) * 2002-02-15 2007-11-13 Dana Corporation MLS gasket with bore edge stopper bead
US20060017232A1 (en) * 2004-07-23 2006-01-26 Ishikawa Gasket Co., Ltd Metal gasket
US20060091615A1 (en) * 2004-11-04 2006-05-04 Ishikawa Gasket Co., Ltd Metal gasket
US20090273143A1 (en) * 2006-09-27 2009-11-05 Masato Nagawa Gasket

Also Published As

Publication number Publication date
DE69008821T2 (de) 1994-10-13
JPH0377053U (de) 1991-08-01
EP0430163A1 (de) 1991-06-05
ES2052139T3 (es) 1994-07-01
EP0430163B1 (de) 1994-05-11
JP2518002Y2 (ja) 1996-11-20
DE69008821D1 (de) 1994-06-16

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